Tab Session Manager by sienori

Save and restore the state of windows and tabs. It also supports automatic saving and cloud sync.

• Save and restore windows and tabs
• Manage sessions with name and tags
• Auto save when window is closed
• Auto save at regular intervals
• Import and export sessions
• Compatibility with Chrome extension
• Cloud sync

Chrome version:
https://chrome.google.com/webstore/detail/tab-session-manager/iaiomicjabeggjcfkbimgmglanimpnae
Edge version:
https://microsoftedge.microsoft.com/addons/detail/jkjjclfiflhpjangefhgfjhgfbhajadk

USERS:

• Since updating to version 3.0.0, there is a problem that the session list can not be opened. Please see here for solutions. https://github.com/sienori/Tab-Session-Manager/wiki/IndexedDB-Error
• Vote on Mozilla website for APIs/bug fixes needed by session managers, so they can be better. https://github.com/sienori/Tab-Session-Manager/issues/364

Version 6.4.0

• Supported for dark mode
  • This is enabled when the OS is set to dark mode.
• Fixed an issue where an error appears when disabling/re-enabling an extension
• Fixed an issue where multiple pop-ups could not be opened

Version 6.3.0

• Implemented undo/redo of the operation
  • If you've deleted an important session, you can undo it!
• Supported for right-clicking on the session list / save button / open button
  • Right click to open the menu
• Supported for middle-clicking on the tab in the popup
  • Middle click to open the tab in the background

Version 6.2.0

• Speed up session loading when opening the popup.
• Enhanced search function
  • Supported search by tab name
  • Supported AND search
  • Replaced the always displayed search bar with a collapsible button
  • The search bar will open automatically when you type in the session list
• Adjusted the popup style to be keyboard operated
• Added extension reload button when IndexedDB cannot be loaded
• Added copy URL button when the restored page is not accessible

Version 6.1.0

• Added option to sync (or not sync) auto save sessions

Version 6.0.0

• Added cloud sync function
  • You can save sessions to Google Drive and sync with other devices.
• Added option to add device name when saving session

See more release notes
https://github.com/sienori/Tab-Session-Manager/releases

I was inspired by the following great add-ons, developed as an add-on for Firefox 57 or later.
Session Manager by Michael Kraft
http://sessionmanager.mozdev.org/index.html